The iPhone 6 and 6 Plus don’t officially launch until Friday, but it seems that some users have managed to get their hands on the two devices early. YouTube channel UNDERkg, which appears to be based in South Korea, has posted hands-on videos for both a Space Gray iPhone 6 Plus and a Gold iPhone 6.

The two clips are 4 minutes long and 7 minutes long respectively, and are both shot in 4K for excellent detail. The videos do a good job of exploring the external hardware of the handsets, as well as some of the more nuanced features in the iOS 8 software. If you have the time, they’re definitely worth a look.

iPhone 6

iPhone 6 Plus

Apple unveiled the iPhone 6 and 6 Plus at a high profile media event last week, calling them the biggest leaps in the smartphone line since it debuted in 2007. The iPhone 6 has a 4.7-inch display, and the 6 Plus has a 5.5-inch, and the latter costs $100 more, uses a bigger battery, and has optical image stabilization.

Again the two handsets will go on sale in several countries around the world this Friday at 8am local time. Apple opened up pre-orders for both the 6 and 6 Plus last Friday, but most models are now showing lengthy shipping times. If you’re looking to get one soon, your best bet is to head to a retail store this week.